Tunnel-type catalyst roasting device capable of integrally and uniformly heating workpiece

Abstract

The invention discloses a tunnel-type catalyst roasting device capable of integrally and uniformly heating a workpiece. The device comprises a machine shell and is characterized in that a feeding plate is arranged on the inner wall of the bottom of the machine shell in a sliding mode, a lifting base is arranged at the top of the feeding plate, outer furnace bodies are evenly installed at the top of the lifting base, inner furnace bodies are arranged inside the outer furnace bodies, fuel distribution assemblies are evenly arranged on the side walls of the inner furnace bodies, a shaping deviceis arranged between each outer furnace body and each inner furnace body, the fuel distribution assemblies comprise heating sleeves, holes are evenly formed in each inner furnace body, the heating sleeves penetrate through the holes, one ends of the heating sleeves are connected with fixing rods, one ends of the fixing rods penetrate through the outer furnace bodies, trapezoidal cavities are evenlyformed in the outer walls of the outer furnace bodies, the outer portions of the fixing rods are sleeved with springs, and a flexible film is slidably connected between the upper side wall and the lower side wall of each inner furnace body. The tunnel-type catalyst roasting device has the advantages of being even in heating and capable of avoiding local overburning.

Description

technical field [0001] The invention relates to the technical field of catalyst roasting furnaces, in particular to a tunnel-type catalyst roasting device for uniform heating of workpieces as a whole. Background technique [0002] Calcination is the last link in the preparation of almost all solid catalysts and their supports. Calcination temperature has an important impact on the structural properties, phase, grain size, surface acidity and other properties of the catalyst, and ultimately affects the comprehensive performance of the catalyst. [0003] In the calcination process of the catalyst carrier, the shape of the carrier has different customized morphological requirements according to the needs. There are usually carriers with various cross-sectional shapes in the same batch of calcination furnaces, and the heating components of the existing calcination furnaces are usually distributed in the The inner wall of the heating furnace cannot flexibly adjust the position of...

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Problems solved by technology

[0003] In the calcination process of the catalyst carrier, the shape of the carrier has different customized morphological requirements according to the needs. There are usually carriers with various cross-sectional shapes in the same batch of calcination furnaces, and the heating components of the existing calcination furnaces are usually distributed in the The inner wall of the heating furnace cannot flexibly adjust the position of the heating head according to the surface shape of the carrier, and the heating effect is uneven; at the same time, most of the existing catalyst roasting combustion media are single-phase roasting, and different combustion media have different flame core temperatures. A workpiece with a thicker inner wall needs a higher temperature flame core to achieve the same heating effect in the same time, otherwise it will cause local overburning of the workpiece

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